code: def test_aso_calculate_mass():
      search_space = search.SearchSpace(
          n_agents=10,
          n_variables=2,
          lower_bound=[0, 0],
          upper_bound=[10, 10],
      )
  
      new_aso = aso.ASO()
      new_aso.compile(search_space)
  
      mass = new_aso._calculate_mass(search_space.agents)
  
      assert mass[0] == 0.1
  
file_path: opytimizer/tests/opytimizer/optimizers/science/test_aso.py
imports: import numpy
  from opytimizer.optimizers.science import aso
  from opytimizer.spaces import search
label_desc: Use image node_id 4 for calling a global function with example usage: test_aso_calculate_mass() without return types